名校
1 . 已知
,
,其中
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6192a8374d87d91559490c1d0c10381b.png)
(1)求角
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b9189638705753a50b5dc1c6ef54ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f265bb063c771dd52ab09de1798f1db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68773d21eb81ed550ab85ca0999c03c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6192a8374d87d91559490c1d0c10381b.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5d8f88d10df01b0542d0c675b3b831.png)
您最近一年使用:0次
2022-12-21更新
|
2010次组卷
|
8卷引用:辽宁省实验中学2023-2024学年高一下学期期中阶段测试数学试卷
解题方法
2 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189ada0f50e018c7c9dcfd0e10556600.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189ada0f50e018c7c9dcfd0e10556600.png)
您最近一年使用:0次
13-14高三上·浙江湖州·期中
名校
解题方法
3 . 已知锐角
、
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9fcaa804011c37873b03ee284504fe.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ebb96c73c0abf240bdc3f9d1ecec7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b184f8323a8324a7d49599feb29a5598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9fcaa804011c37873b03ee284504fe.png)
您最近一年使用:0次
2016-12-02更新
|
1715次组卷
|
7卷引用:辽宁省大连市第八中学2020-2021学年高三上学期期中考试数学试题